Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B32/00—Water sports boards; Accessories therefor
  • B63B32/68—Mast foot attachments, e.g. mast foot rails
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63H—MARINE PROPULSION OR STEERING
  • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
  • B63H8/20—Rigging arrangements involving masts, e.g. for windsurfing
  • B63H8/24—Arrangements for connecting the rigging to a board

Definitions

• the invention relates to a mast base for sailing boards, consisting of a holding part which can be fastened to the sailing board and a connecting part which is connected to the latter by a universal joint and which can be connected to the mast.
• the mast foot should be able to easily detach from the sail board, so that injuries to the surfer by pinching limbs between the mast and sail board are avoided.
• the detachability of the mast foot from the sail board often also leads to an undesired separation of the two parts, so that the surfer has to put the two together again before he can use the device again.
• the object of the invention is therefore to provide a joint for a mast foot which on the one hand enables the mast to be easily detached from the sail board, but on the other hand avoids manipulations for reconnecting the mast foot after such loosening with the sail board.
• this object is achieved in that the holding part and the connecting part are provided with curved surfaces which roll on each other in their all-round movement and which engage in a form-fitting manner, and that the holding part and the connecting part are held together by an elastic tension element.
• the elastic pulling element holds the holding part and the connecting part together, so that a universal joint is formed by their curved surfaces that roll against each other.
• the elastic tension element enables the articulated connection to be separated, so that injuries to the user are avoided.
• the elastic pulling element pulls the mast back in and automatically joins the articulated connection, so that special manipulations for reconnecting the mast base to the sail board are not necessary.
• a particularly simple reassembly of the joint parts is achieved in that the holding part is provided with a ring provided with a bead-shaped edge and the connecting part with a complementary ring groove. After a separation, the elastic tension element holding the two parts together pulls the connection part, which is drawn with its annular groove onto the vuist-shaped edge and thereby automatically restores the articulated connection.
• the holding part is attached to a slide or as Sled is formed, which is guided in a longitudinally displaceable manner on a guide running along the central axis of the sailing board.
• a simple adjustment option for the surfer results from the fact that the slide is connected in an articulated manner to a pedal which is connected via a lever device to a spring-loaded locking piece engaging in the recesses in the guide in such a way that when the pedal is depressed it is disengaged from the respective locking recess becomes.
• the longitudinally displaceable and lockable slide on the sail board is combined with the elastic pulling element holding the universal joint together.
• a further embodiment of the invention relates to the special design of the pedal of the slide and of the locking element interacting with it.
• the slide is expediently guided on its guide with a resiliently balanced play, so that sand falling into the guide cannot impair the good displaceability of the slide.
• FIG. 1 shows a longitudinal section through a first embodiment of a mast foot that is longitudinally displaceable on a carriage
• FIG. 2 shows the mast foot according to FIG. 1 in an angled position. development of the connecting part
• FIG. 3 shows the mast base according to FIG. 1 and FIG. 2 with the connecting part removed
• FIG. 4 shows a longitudinal section through a second embodiment of a mast foot that is longitudinally displaceable on a carriage
• FIG. 5 shows a longitudinal section through a third embodiment of a mast foot that is longitudinally displaceable on a carriage
• FIG. 6 shows a plan view of another embodiment of a slide with a guide for receiving the holding part of the mast base
• FIG. 7 shows a longitudinal section through the slide guide according to FIG. 6 and
• FIG. 8 shows a representation corresponding to FIG. 7 in the momentary state of the unlatching.
• the holding part 1 is designed as a slide which is guided in a longitudinally displaceable manner on a T-shaped guide piece 2.
• the guide piece 2 is provided with a base plate 3, which can be attached to the sail board.
• the holding part 1 has a collar-shaped ring 4, which is provided with a bead-shaped edge 5.
• the connecting part 6 has in its lower region a flange-shaped collar 7 which has a corresponding annular groove 8 on its side facing the bead-shaped edge 5, the shape of which corresponds to the shape of the shaped edge 5 is adapted.
• the connecting part 6 has a central extension 9 which tapers conically and with which the connecting part 6 engages in the ring 4 to below the bead-shaped edge 5.
• the holding part 1 and the connecting part 6 are provided with central bores 10, 11, in which a rubber band 12 connecting both parts runs.
• the rubber band 12 has a lower thickened head 13, with which it is fixed in a widened space of the holding part 1 behind the edge of the bore 10.
• retaining washers or other fastening means for the rubber band can also be provided.
• the rubber band 12 has a retaining pin 14 passing through it, the. Ends are supported on an annular shoulder 15 which is formed behind the bore 11. The ends of the pin 14 can slide on the annular shoulder 15, so that the connecting part 6 can be rotated relative to the holding part 1 without any twisting of the rubber band 12.
• the mast 16 is attached to the connecting part by plugging it on or in some other way.
• the bead-shaped edge 5 and the annular groove 8 form an articulated connection in that the holding part 1 and the connecting part 6 are held together under the elastic tension of the rubber band 12 such that the connecting part 6 is in its annular groove 8 on the bead-shaped edge 5 of the holding part 1 supports.
• This support is ensured in the manner shown in FIG. 2 even when the connecting part 6 is pivoted relative to the holding part 1. If a stronger pull is exerted on the connecting part 6, the rubber band 12 is stretched in the manner shown in FIG. 3, so that the connecting part 6 can separate from the holding part 1.
• the rubber band 12 strives to restore the articulated connection by pulling the connecting part 6 against the holding part 1.
• the ring groove 8 automatically couples to the bead-shaped edge 5.
• FIGS. 4 and 5 The embodiment according to FIGS. 4 and 5 is described below.
• FIGS. 4 and 5 the middle part of a sailing board is shown cut open in the area of the mast connection and designated 101.
• the upper side 102 of the sail board has a recess 103 which runs in the central longitudinal axis of the sail board and receives a box 104 which carries the device according to the invention for connecting the sail mast to the sail board.
• the box is removably mounted in the recess, for which purpose it carries a pawl 105 which is under the influence of a spring 106 and normally engages behind a catch 107.
• a loop 108 attached to the pawl serves to release the latching.
• two guide grooves 110, 111 are provided in the longitudinal side walls 109 of the box 104.
• the ends of two pins 112 are guided in the guide grooves 110 and are rotatably mounted in the cheeks 113 of a carriage 114.
• the cheeks 113 form the legs of a U, the web 115 of which is designed as a bearing for a support member of the mast.
• the bearing forms the joint socket 116 of the universal mast joint designed as a ball joint.
• the joint socket receives the joint ball 117, on which a connecting pin 118 for the sail mast, not shown, is formed.
• the joint socket 116 also has an enlarged annular bead 119.
• a latching pin 120 is mounted parallel to the pins 112 in vertical longitudinal slots (not shown) of the cheeks 113 of the slide 114. Normally, with each end it engages in a locking trough 121 of a row of locking troughs formed by the guide groove 111 and thus secures the slide 114 against longitudinal displacement.
• the latching is secured in the present case by a spring 122 designed as a rubber rope.
• the spring wraps around a deflection roller 123 provided on the pins 112 and 120 and extends through both parts 116, 117 of the universal mast joint into the mast, where it is more suitable is not anchored with both ends. By adjusting the anchor point, the bias of the spring can be varied in a known manner.
• a slide 133 for guiding the spring is also movably mounted in the web 115 of the slide 114 in a plane parallel to the upper side 102 of the sailing board.
• the two pins 112 also serve as axle pins for a lever 124 and 125, respectively.
• the levers are designed as angle levers and are formed from a U-shaped part, the web of which forms a step notch 126 and 127, respectively. With their legs 128 and 129, which extend beyond the pin 112 and form the second lever arm, the levers engage under the deflecting roller 123 on the locking pin 120. Rest position kept.
• the spring 122 is tensioned here.
• the annular bead 119 which is elastic, prevents damage to the joint socket by the falling mast, and prevents injury to the sail surfer, for example by pinching a foot. Furthermore, the ring bead allows the sail mast to be erected more easily, especially when the spring is weak.
• Figure 5 shows a slightly modified version compared to Figure 4.
• the same reference numerals are used for the same parts.
• the box received here by the recess 103 in the sailing board 101 is designated 134.
• a guide groove 136 is provided in each longitudinal side wall 135 of the box.
• the guide grooves of both longitudinal side walls are again congruently opposite one another.
• Two pins 137 carry rollers 138 at their ends, which engage in pairs in a guide groove 136.
• the pins are supported in cheeks 139 of a slide 14 ⁇ . Parts 115 to 119 and 133 correspond to the previous version,
• a locking pin 120 is in turn mounted parallel to the pin 137 in vertical longitudinal slots (not shown) of the cheeks 139. Also in this embodiment, the locking pin engages with each end in a locking recess 121 of a row of recesses formed in this case by the guide groove 136. The locking is also secured by a spring 141 designed as a rubber rope, which wraps around a deflection roller 123 mounted on the locking pin 120 and extends through both parts 116, 117 of the universal mast joint into the mast.
• the two pins 137 in turn form axle pins for a lever 142 or 143.
• each lever is formed from a U-shaped part, the web 144 and 145 of which forms the step notch.
• the legs of this lever are guided over the deflection roller 123 on the locking pin 120, so that the levers are held in their rest position by the spring 141 via the deflection roller 123.
• the detent pin 120 is released by pressing down one of the two levers 142, 143.
• the carriage 140 can be moved forwards or backwards. A renewed locking of the locking pin 120 in a locking recess 121 takes place after releasing the depressed lever when the locking pin is opposite a locking recess under the influence of the spring 141.
• FIGS. 6 to 8 The embodiment according to FIGS. 6 to 8 is described below.
• the device shown in these figures is used to connect a mast to a sail board, which can be of any construction and are therefore not shown.
• a round pin on the universal latching joint is necessary, via which this is to be connected to the device according to the invention.
• a vertical bearing bore 201 is provided for this purpose.
• This bearing bore 201 is located in a bearing 202 which is designed as a slide which is displaceable in a guide 203 provided on the upper side of the sailing board.
• a U-shaped rail serves as a guide, the legs 204, 205 of which are angled inwards.
• the guide is, for example, screwed onto the top of the sail board, for which purpose screw holes (not shown) are present. With their bends, the legs 204, 205 overlap a slide plate 206 which, together with a molded part 207, forms the carriage 202 '.
• the bearing bore 201 is located in the molded part 207.
• the molded part carries a spring wire clip 208 which, in a manner to be described below, secures both the locking of the support member (not shown) of the universal mast joint in the bearing bore and the locking of the carriage 202 'in the guide 203.
• the spring wire clip 208 forms a pivot axis 209 which is mounted horizontally in the molded part 207 transversely to the direction of displacement of the carriage 202 '.
• the end part 210 and the end part 211 of the spring wire bow 208 are angled several times with respect to the pivot axis 209, so that the end part 210 is in the same horizontal plane as the pivot axis and parallel to it lies, while the end part 211 is angled vertically downwards and forms a locking lug.
• This locking lug serves to interact with a respective locking recess 212 of a series of locking recesses which are provided in the web of the guide 203.
• the pivot axis 209 and the end part 210 parallel to it form diametrically opposite secants of the circumference of the bearing bore 201 (see in particular FIG. 6).
• two notches are formed, which hold the support member of the universal mast joint in the bearing bore 201 in a force-fitting manner.
• the support member has, in a manner known per se, an annular groove near its free end, into which the parts 209 and 210 of the spring wire clip 208 are inserted.
• the support member can be inserted into the bearing bore and pulled out of it.
• the two parts are mounted in the molded part 207 with a sufficiently large amount of play.
• the spring wire clip 208 initially runs obliquely upwards towards the end part 210 and extends outside the molded part 207 (see in particular the dash-dot lines in FIGS. 7 and 8).
• This part forms the one lever arm of a two-armed lever, the other arm of which is the part of the spring wire clip 208 lying beyond the pivot axis 209.
• the free end of this part is equipped with a pedal 213. Depressing the pedal takes place against the resistance of this arch of the spring wire clip 208 as a result of the elastic deformation occurring, since yes.
• End part 210 is mounted at a distance from the pivot axis 209 in the molded part 207. Depressing the pedal 213 causes the locking lug 211 to be raised, so that it does not Engagement with the locking recess 212 comes. In this state, the carriage 202 'in the guide 203 can be moved according to the respective requirements.
• the supporting member can move out of the bearing bore 201 while overcoming a structurally predetermined force, i.e. the rig detach from the sail board.
• the pedal 213 is to be raised so that the parts 209 and 210 spread and thus emerge from the annular groove of the support member.
• the pedal can also be raised.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Ocean & Marine Engineering (AREA)
• Toys (AREA)
• Pivots And Pivotal Connections (AREA)

Priority Applications (4)

Applications Claiming Priority (3)

Publications (1)

Family

ID=25781686

Family Applications (1)

Country Status (3)

Cited By (10)

Citations (7)

• 1980
  • 1980-10-24 WO PCT/EP1980/000117 patent/WO1981001125A1/de not_active Application Discontinuation
  • 1980-10-24 JP JP50247280A patent/JPS56501448A/ja active Pending
• 1981
  • 1981-05-04 EP EP80902057A patent/EP0038342A1/de not_active Ceased

Patent Citations (7)

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